Specification
| Product Name | Diethylene glycol dimethyl ether |
|---|---|
| Other Names | DME |
| CAS No. | 110-71-4 |
| EINECS No. | 203-794-9 |
| MF | C4H10O2 |
| Molecular weight | 90.121 |
| Purity | 99.0% |
| Appearance | Colorless liquid |
| Density | 0.837g/cm 3 |
| Melting point | -69 °C |
| Boiling point | 63°C at 760 mmHg |
| Flashing point | 32 °F |
Values are typical for the standard grade. Tighter specifications are available — state the target in your inquiry and we confirm against the production batch.
Hazard classification
- H225 Highly flammable liquid and vapour
- H360FD May damage fertility. May damage the unborn child
- H332 Harmful if inhaled
- EUH019 May form explosive peroxides.
Precautionary statements (1)
- P203 Obtain, read and follow all safety instructions before use
European Chemicals Agency. "1,2-dimethoxyethane; ethylene glycol dimethyl ether; EGDME, Index No. 603-031-00-3." In Table 3 of Annex VI to Regulation (EC) No 1272/2008 (CLP Regulation), 23rd Adaptation to Technical Progress (harmonised list as of 2026-07-07). Helsinki: European Chemicals Agency, 2026. https://echa.europa.eu/information-on-chemicals/annex-vi-to-clp.
Substance identity verified against the registry entry on 2026-09-02.
Packaging and shipping
Diethylene glycol dimethyl ether (DME) is the fundamental and core member of the dimethyl ether family. It is renowned for its low boiling point (~85°C), high polarity, excellent solvation ability for alkali metal ions, and outstanding stability towards strongly basic organometallic reagents (such as Grignard reagents, organic lithium). It can significantly reduce the viscosity of the electrolyte, enhance the ionic conductivity, and due to its low boiling point characteristic, is particularly suitable for processes and applications that require rapid drying or operation under low-temperature conditions.
Product Description
Anhui Eapearl Chemical Co., Ltd., as a professional supplier in the field of high-purity specialty solvents in China, relying on advanced production and purification technologies, now offers the market high-purity and high-performance diethylene glycol monomethyl ether (DME). We are committed to transforming this top-notch non-protonic polar solvent, which has low boiling point, high polarity, wide electrochemical window, and excellent chemical stability, into a key material for achieving high-performance and low-temperature breakthroughs in fields such as new energy batteries, high-end organic synthesis, and precision electronic cleaning.
Product Core Positioning
Core solvent for high-performance lithium/sodium battery electrolytes: As a key component of electrolytes for lithium-ion batteries, lithium-metal batteries, and sodium-ion batteries, DME, with its high dielectric constant, low viscosity, and high solubility for lithium/sodium salts, can significantly enhance the ionic conductivity and low-temperature performance of the electrolyte. Its wide electrochemical window supports high-voltage cathode materials and is one of the preferred solvents for developing battery systems with high rate capability, long cycle life, and excellent low-temperature performance.
Preferred solvents for advanced organic synthesis (Grignard/coupling reactions): In Grignard reactions, organic lithium reactions, transition metal-catalyzed coupling reactions (such as Suzuki, Negishi), and various reactions that require a strong polar aprotic environment, DME, due to its high stability and strong solubility of organic metal reagents, can significantly increase reaction rate, yield, and selectivity. It is a star solvent for synthesizing pharmaceutical intermediates, pesticide raw materials, and advanced materials.
Electronic-grade precision cleaning and lithography process: Thanks to its strong dissolving power, low boiling point (quick drying), and low residue characteristics, high-purity DME is widely used in the precision cleaning and removal of photoresist during the manufacturing processes of semiconductor wafers, display panels, and precision optical components. It can quickly evaporate without leaving any traces, meeting the ultimate requirements of the high-end electronic manufacturing industry for efficiency and cleanliness.
Special polymer synthesis (anionic polymerization) medium: As an ideal solvent for anionic active polymerization, DME can effectively control the active centers and precisely regulate the molecular weight and distribution of the polymers. It is widely used in the synthesis of high-performance elastomers and plastics such as styrene-butadiene-styrene block copolymer (SBS) and polystyrene.
Special functional fluid and gas treatment: It can be used to prepare special thermal conductive fluids or hydraulic fluids that require low freezing points and high polarity. It also has certain physical absorption capabilities for some acidic gases.
Anhui Eapearl Chemical Co., Ltd., with high-performance specialty solvents such as diethylene glycol dimethyl ether (DME), has always been committed to empowering scientific innovation and precision manufacturing. We are not only a raw material supplier, but also a reliable partner for your pursuit of superior performance and process breakthroughs. Choosing us means choosing purity, safety and professionalism.
Delivery&Payment method
Frequently asked
In what packaging is Diethylene glycol dimethyl ether shipped?
Standard formats are Drum (225 kg), IBC Drum (1127 kg), ISO tank (20ft) (24–26 m³), ISO tank (40ft) (48–50 m³). Other packaging can be arranged for full-container orders.
Is a safety data sheet available for Diethylene glycol dimethyl ether?
Yes. A full safety data sheet for CAS 110-71-4 is published and linked from this page; a signed copy is issued with the shipping documents.
What purity do you supply?
The standard grade is 99.0%. Tighter specifications are confirmed against the production batch before shipment.
